Hi, @Tryer_Git
Welcome to Microsoft Q&A!
After searching, I found some explanations about the functions of the "bin" and ".vs" folders. Unfortunately, I did not find any official documents detailing the functions of these folders and whether they can be safely deleted.
You can directly advise Visual Studio Product Team to create a document about whether the temporary folder/cache can be safely deleted in our Developer Community.
Sincerely,
Peng
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